Sooty Grouseare
a wonderful sight to see! The yellow air sacs of the
displaying male shout out to any observers that he is on
breeding territory.
The owl-like sound that emerges from the sacs
undoubtedly resonates his intent: "This is my
territory!" Check out his
run across the snow in early
morning. We were lucky to see both male and female.Female at North
Cascades
We heard the clucking of this hen and looked to find her on
top of a very old tree stump.Male at Paradise
on Mt. RainierRuns Across Snow BankSings from Top of RockSpread Tail
Check out Drew's
audio spectrogram. It
shows variation in the number of notes per call.